Band-making machine.



0. N. TEVANDBR.

BAND MAKING MACHINE.

APPLIUATION FILED JULY 31, 1911.

1,0781707; Patented Nov. 18, 1913.

' a sums-sum 1.

0. N. TEVANDER.

- BAND MAKING MACHINE.

1221.10111011 111m) JULY :11, 1911.

' 1,078,707. Patented Nov. 18,1913.

6 BHEETB-SHEET 2.

' I fllojjlljwandefr 0. N. IEVANDER. BAND MAKING MAOHINB. APPLICATION rnnn'JuLY a1, 1911.

Patented Nov. 18, 1913.

5 SHEETS-SHEET 8.

OI KII /Mder 0. N. TEVANDER. BAND MAKING moa'mn. APPLICATION FILED JULY 31, 1911.

1,078,707. Patented Nov. 18, 1913.

i 5 SHEETS-QBEET 4.

0. N. TBVANDBR. BAND MAKING MACHINE.

APPLICATION I ILBD JULY 31, 1911. U

Patented Nov. 18, 1913.

6 SHEETS-SHEET 6.

OLOF N. TEVANDER, 01" CHICAGO,

ILLINOIS, ASSIGNOR 0F ONE-HALF 1'0 ARTHUR MANIERRE, OF CHICAGO, ILLINOIS.

' BAND-MAKING MACHINE.

Specification of Letters Patent. Application filed July 31, 1911.

Serial No. 641,648.

To all whom it may concern:

Be it known that I, OLoF N. TnvANDER, citizen of the United States, residmg at Chicago, in the county of Cook and State of Illinois, have invented a certain new and. useful Improvement in Band-Making Machines, of which the following is a full, clear, concise, and exact description, reference being had tothe accompany1ng drawings, forming a part of this specification.

M invention relates to machlnes for making ands, the product of my invention being of particular service when employed for fastening closures in position, though I do" not wish to be limited to a machine that makes bands for this purpose. The bands.

as they are preferably made, are formed of strip metal and are desirably made endless by having the end portions of the strip metal fastened together, as by'soldering, though I do not wish to limit myself to the formation of bands that are continuous or endless, nor to the soldering together of the band ends.

My invention will be explained by reference to the accompanying drawings that show one of its embodiments, though it is to be understood that the invention is not to be limited to the precise embodiment illustrated.

The product herein disclosed forms the subject matter of a co-pending application Serial No. 566,580, filed June 13, 1910.

In the drawings Figure 1 is a sectional elevation of the essential parts of a machine constructed in accordance with one embodiment of the invention; Fig. 2 is a view through the central portion of the structure as it is shown in Fig. 1 but taken at right angles to the direction in which Fig. 1 is illustrated, some of the mechanism shown in Fig. 1 being omitted in Fig. 2; Fig. 3 is a plan view of a part of the structure, some of the parts being shown in difi'erent adjust-- ment. as compared with the adjustment illustrated in Fig. 1; Fig. 4 is a View of the preferred form of the product; Fig. 5 is a sectional view of the band shown on line 55 of Fig. 4, a forming jaw being also indicated in section in Fig. 5- 'toinder more clear this structural detail of the machine; Fig. 6 is a cross sectional view of a completely formed band taken through the oined ends thereof on line 6 6 of Fig. 4; Fig. 7 is a plan view of the machine with certain of the parts in another adjustment;

with certain parts shown in still another adustment; Fig. 9 is a plan view of the complete machine; Fig. 10'is a sectional view on l1 ne 10 IQ of Fig. 9; Fig. 11 is a sectional vlew on llne 11 11 of Fig. lOFlg. 12 is a sectional view in the direction of arrows 12 12 of Fig, 9; and Fig.13 is a sectional view 1n the dlrection of the arrows 13 13 of Fig. 9.

Like parts are indicated by similar charactors of reference throughout the different figures.

The bands that are formed by the machine are desirably circular in shape and .are desirably endless, as illustrated in Fi 4, though I do not limit myself to the s ape of the bands nor to the fact that they are endless.

, The machine for making the bands includes cam mechanism and operating parts. The strips from which the bands are to be formed maybe supplied to the machine by a component part thereof or by separate facil ity. In Fig. 1' I have shown a sheet 1 from which straight strips (one being illustrated at 2 in Fig. 8) may be cut, the cutting means including a component portion of the machine comprising cutting mechanism 3 and 4, the cutter 4 being vertically reciprocated in order to cut the strips from the sheet. One set of-relati-vel movable jaws 5 is provided, both of these aws being desirably movable so that they may both be moved from and.

toward a forming body 6 that is desirably an integral part of a vertically movable cylinder.7. As the product illustrated in Figs. 4, 5 and 6 is a circular ring, the forming Patented Nov. 18, 1913. a

Fig. 8 is another plan view of the machine body 6 has an external surface which substantially conforms in peripheral length to the inner edge of the ring. When each strip 2 is being cut from the sheet 1 the jaws 5 are in positions removed from the forming body 6 as indicated in Fig. 7 so that the formed strip 2 is adapted to fall between the left hand jaw 5 and the forming body 6. The.

forming body 6 and the jaws 5 are designed to act upon the face portions of each strip 2 to which end such strip is guided into a substantially vertical position by means of guiding pins 8 that are carried upon struts 9 than span a gap provided in a stationary plate 10 which supports the jaws 5 and other mechanism, When a strip 2 has been cut from a sheet 1 and has fallen between the dimensions that approximate the dimensions band. Where the band iii to ed forming body 6 and the left hand 5, the 'left hand jaw 5 first advances toward the 'forming body to engage the substantially right strip strip 2 and brin the opposed portions of the forming body whereby the band is partially formedwith of the complete be endless, the right hand jaw 5 is provi with a notch 11 for receiving one end of strip 2 to permit and slide beneath the first most clearly in Fig. 3, so that the partially formed ends of body 6 but in which the'forming body been slightly elevated.

The forming body 6, during the time jaws 5 are being moved toward it, has

lower edge 12 in the position indicated by the dotted line also marked 12 in Fig. 1 so body may not only serve that the forming to take part in the initial formation of band but may also be prepared instantly to of the band in cross section, the forming body cotipe riailte forming body 6 that is placed in the plane of the jaws 13 for the purpose just stated, constitutes a motion restricting the partially formed take part in curling the material ing with the jaws 13 for this purpose.

portion of the member to prevent band from being moved inward so that jaws 13 may perform their curling function. As illustrated in several of the figures and as most clearly shown in Fig. 5, the upper posed margins of the jaws 13 are'p'rovi with recesses 14 conforming substantially to the shape thmhe band is finally to have in cross section of its material. After the band has been partially formed by the jaws 5, forming body 6 is closed, engages the formed band movement of the shoulder 15 to bring band into the shape illustrated in Figs. 5 and 6, the lower partof the forming body serving to prevent the contraction of the diameter of the band and so restricting movement of the band that the curling function may be performed. The means for curlv 2 to bend a portion thereof that lies substantially at the middle of the strip into a half circle conforming to the diameter of the 'forming body 6, whereafter the right handj aw 5 moves toward the left hand jaw. to engage the remaining portions of .the them into engagement with the other end to underlie end, as indicated band overlap. The material of the band in this first stage of its construction is rectangularin cross section as illustrated in Fig. 1 at 16 where the jaws are shown closely approached to the forming lowered so that the shoulder 15, which isofirdiameter that enables it to have sliding contact with the jaws 5 when top edge of the partially 16 and forces it downwardly into the grooves 14, the lower edge of the band being curled outwardly and thereafterv returned into close proximity to the upper edge of. the hand during the downward jaws jaws

the

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be drawn back from the permit the formed ring buckle when lying is constrained to' curl when pushed within the recesses 14.

When the band has been properly curled, the jaws 13 are withdrawn to space through which the band may drop and to enable the jaws band from sufiicient to cause escap the rod 19 that guides each charge from the machine.

tion of the cylinder 17 carried thereby constitutes a holder for the bands tbmporarily charge from the machine. 20 is placed in juxtaposition with the overed ends of curled in cross section.

ing the partially formed band is desirably 1n the form of the jaws 13 since the jaws may forming body to to be discharged, the

13 being desirably simultaneously moved, with equal speeds, with respect to the forming-body. limited, in all embodiments of my invention, to the employment of relatively movable I do not wish to be 13. When jaws I3-are employed they aredesirably advanced toward the forming body simultaneously with the movement of the jaws 5 toward the forming body, so that the jaws 13 will take part in holding the strip 2 whileit is being initially bent by the left hand jaw 5. During the curling operation the jaws 5 desirably remain substantially in the position to which they have been brought in partially forming the band so the partially formed band cannot between the jaws 5 and afford a clear the cylinder 7 is raised, from the position to which ithas been lowered, sufficiently to enthe jaws 5, which are still closed, to

scrape the newly formed band from the body after tion of the cylindrical element 7 carries a number of spring fingers a sufiicient distance away body bands indicated at 18. 'ment of the cylinder 7 is not only sufficient 5 to scrape the curled ortion 6 so that the band may therebepermitted to fall. The lower por- 17 that are located from the forming a number of formed The upward move- 6 so as to hold the forming body 6, but is also the lowermost band 18 to e the spring fingers 17 and fall upon band in its dis- The lower por- 7 and the spring finger to retard their dis- A source of heat the overlapped the bands,

being vertically of the different bands least where applied to the overlapped ends of the these overlapped ends to dimensions of curling the partially the material to be While my invenas preferably practised, includes such for bending strip Ina-- so that the unitary mechanism, there are characteristics of the invention which are considered-ito be novel per se.

Any suitable form of mechanism may be.

employed for operating the parts which I have described. I have shown, in Figs. 9 to 13 inclusive, parts which are complemental to those parts which I have .ihitherto described and which may be suitably employed for effecting their proper operation. A suitable source of power is employed to drive a fixed pulley such as 21, this fixed pulley being rigid upon a shaft 22 that. fixedly carries beveled pinions 23, 24. These beveled pinions are in mesh with beveled pinions 25 and 26 respectively, these latter pinions being fixed upon horizontal shafts 27 and 28. Cams 29 and 30 are fixedly mounted upon shaft 27 and cams 31 and 32 are fixedly mounted upon shaft 28. The

' cams 29 to 32 inclusive are provided with camways that respectively receive cam rollers 33, 34, 35 and 36, these cam rollers being respectively carried upon cam slides 37, 38, 39 and 40. The cam slides 37 and 39 are connected with the opposing jaws a while the cam slides 38 and 40 are connected with the lower opposing jaws 13. The cams 29 to 32 are so relatively related as to operate the jaws 5 and 13in a manner which has been described. The shaft 22 carries an eccentric 41 about which an eccentric strap 42 is passed, this eccentric strap being articulated with oneend of a rocker arm 43, the other end of this rocker arm being articulated with the cutting jaw 4 by a vertically guided reciprocating rod 44, see Fig. 10. The shaft 22 also carries a cam 45 (Fig. 11 the cam groove in the cam receiving a cam roller 46 carried upon a slide 47. The cam slide 47 is connected with one end of a rocker arm 48, the other end of this rocker arm being connected with a plunger 7 which is thus operated by the mechanism/ shown for the purpose hitherto set forth. a

While Ihave herein shown and particularly described thepreferred embodiment of the inve tion I do not wish to be limited to the precise details ofpon'struction shown as changes may readily be made without departing from the spirit of my invention, but Having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. A band making machine having facili'ty for positioning strips that are'to be formed into bands and including unitary mechanism having a forming portion movable transversely of the plane in which the strip to be operated upon is positioned, thereby to operate upon the face of the strip; means cooperating with the forming the approach of the strip ends into the apjaws operating upon aface of a strip for effecting the approach of the strip ends and bending such strip into the approximate dimensions of theband; a forming body between the jaws and cooperatingvwith the jaws to bend strip material into the approximate dimensions of the band; and mechanism for curling the material of the band,

after its dimensions have been approximated to cause said material to be curled in cross section.

3. A 'band making machine including unitary mechanism having one set of relatively movable jaws; a forming body between the jaws and cooperating with thejaws to bend strip material into the approximate dimensions of the band; a second set of relatively movable jaws having recesses into which the material of the partially formed band may be pressed to cause said material to be curled in cross section; and means for pressing the partially formed band into said recesses of the second set of jaws.

4. A band mak'ng machine having relatively movable jaws; a forming body between the jaws and cooperating with the jaws to bend strip material into the approximate dimensions of the band; an element for receiving the partially formed band and shaping it so as to curl the material thereof in cross section; and means for removing the band, when partially formed, from between the aforesaid jaws and forcing it into engagement with the element that curls the band. 7

5. Aband making machine'having a set of relatively movable jaws; a forming body between the jaws and cooperating with the jaws to bend strip-material into the approximate dimensions of the band; a second set of relatively movable jaws recessed to cause the partially formed band to curl in cross section when said band is forced into the recessed portions of the second set of jaws; and means for removing the partially formed band from between the first set of jaws and forcing it into the recessed por-- tions of the second set of jaws.

6. A band making machine having relatively movable jaws, a forming body between the jaws and.cooperat-ing with the jaws to bend strip material into the approximate dimensions of'the band; an element for a receiving the partially formed band and shaping it so as to curl the material thereof a 1n cross section; and means for removing the band, when partially formed, from between the aforesaid jaws and forcing it into ongagement witlrthe element that curls the band, the forming body and p the jaws being relatively movable transverse to the plane of the jaws, said jaws operating to strip the band, after it has been curled, from the forming body when relative movement has been established between the forming-body and the jaws in such a direction transverse to the plane of the jaws as will enable the formed band tobe stripped from the formtions of the second set of jaws, the forming body and the jaws being relatively movable v transverseto the plane of the jaws, the first set of jaws operating to strip the band, after it has been curled, from the forming body when relative movement has been established between the forming bo dy and the jaws in such a direction transverse to the plane of the jaws as will enable the formed band to be stripped from the forming body. I 8. A band mal'ng machine having relatively movable band forming jaws"; and a forming body between the jaws and coopcrating with the jaws in forming the band, said forming body and jaws being relatively movable transverse to the plane of the jaws whereby the band may be pressed against the-jaws and thereby be dislodged from the forming bodya 9. A band making machine including a holde for the bands temporarily to retard their discharge; and a source of heat located 7 in position to enable heat to be applied to sai lgmd's while their discharge is being retarde 1 10. A band making machine having a set of relatively movable jaws; and a forming body between the jaws and cooperating with the jaws to bend the material of which the band is to be formed into the approximate dimensions of the band, one of said jaws being recessed to receive one end of the material of which the band is to be formed to enable this end to overlap its companion end.

11. A band making machine including unitary mechanism having a forming portion operating upon a faceof a strip for efiecting the approach of thestrip ends and bending suchstrip into the approximate dimensions of the band; an element for receiving the partially formed band and shaping it so as to curl the material thereof incross section; and means for removing the band, when partially formed, from the first aforesaid shaping mechan'sm and forcing it into engagement with the element that curls the band.

In witness whereof, I hereunto subscribe my name this twenty-eighth day of July OLOF N. TEVANDER. Witnesses: a

E. L. WHITE, G. L. Cease. 

